Pan, Tianxin http://orcid.org/0000-0002-2243-8818
Mercer, Stewart W.
Zhao, Yang
McPake, Barbara
Desloge, Allissa
Atun, Rifat
Hulse, Emily Susannah Grace
Lee, John Tayu
Article History
Received: 15 July 2020
Accepted: 9 February 2021
First Online: 18 February 2021
Ethics approval and consent to participate
: This study used data from China Health and Retirement Longitudinal Study (CHARLS). Ethics is not required to analyse these data. The Biomedical Ethics Review Committee of Peking University approved CHARLS, and all participants were required to provide written informed consent. The ethical approval number was IRB00001052–11015.
: Not applicable.
: The authors declare that they have no competing interests.